MN90: Hiroshima, Mr. Nier

MN90: Hiroshima, Mr. Nier

PLAY | 01:30 | DOWNLOAD

Al Nier was a physics researcher at the University of Minnesota when he figured out how to separate the isotopes of uranium. Britt Aamodt traces the scientific discovery that, joined with other discoveries, led to the atom bomb dropped on Hiroshima in 1945.